Took my 2013 F30 M Sport to the dealership for repair after 400 miles (Nav went out...) and when I pulled in under the lights I was HORRIFIED about how much brake dust was on my beautiful Alpine White Bimmer! It was everywhere!
I talked to the service manager about it and he said waxing the wheels might help... If not, then I guess I'll just wash the wheels every couple of days. PITA, but the worst part is my gorgeous car doesn't stay pristine!